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A 'jumping gene's' preferred targets may influence genome evolution

Our genetic blueprint contains numerous entities known as transposons, which have the ability to move from place to place on the chromosomes within a cell. An astounding 50 percent of human DNA comprises both active transposon elements and the decaying remains of former transposons. Every time a plant or animal cell prepares to divide, the chromosome regions richest in transposon-derived sequences are among the last to duplicate.
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